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unclassified oceanic element comparison table

Subject	has pronunciation	has space group	has stable isotope	has thermal neutron capture cross section	has rigidity modulu	has synonym	has isotope mass range	has heat of vaporization	has discoverer	has thermal conductivity	has discovery date	has occurrence	has name origin	has linear expansion coefficient	has heat of fusion	has specimen	has critical pressure	has daily dietary intake	has lethal intake	has ocean residence time	has mineral	has melting point	has neutron scattering length	has origin	has image	has covalent radii	has term symbol	has crystal cell dimension	has poisson's ratio	has mass of element in person	has reserve	has ocean oxidation state	has young's modulu	is a kind of	has heat capacity	has state	has bulk modulu	has van der Waals radii	has Spanish translation	has molar volume	has definition	has boiling point	has hazard	has biological role	has ionic radii	has electrical resistivity	has French translation	has relative atomic mass	has chief source	has electron affinity	has registry number	has density	has atomic radii	has atomic number	has synthesis mechanism	has mass magnetic susceptibility	has hardness	has discovery location	has number of isotope	has toxic intake	has abundance	has Italian translation	has heat of sublimation	has atomic emission line	reacts with	has triple point temperature	has longest lived isotope	has filling orbital	has symbol	has use	has crystal type	has world production	has electron configuration	has number of proton	has German translation	has mass absorption coefficient	has level in human	has electronegativity	has critical temperature	has group
argon	ar-gon	Fm3m	argon 40	0.675 barns		noble gas	32 to 46	6.53 kJ mol-1	Lord Rayleigh and Sir William Ramsay	0.0177 W m-1 K-1 at 300 K for gas	1894	atmosphere of a planet or asteroid	argos = inactive from Greek		2.21 kJ mol-1	available in small pressurized canisters. Safe.	4862 kPa	very low	non-toxic	28000 years	none	83.78 K	0.1909 × 10-12 cm				1S0 in ground state	a = 531.088 pm		very small for a 70 kg average person	6.6 × 1013 tonnes in atmosphere	0		unclassified oceanic element	20.786 J K-1 mol-1 for gas at constant pressure 0.1 MPa at 298.15 K	gas at standard temperature and pressure		191 pm		24.12 cm3 at 40 K	colourless, odourless gas comprising 1% of the atmosphere	87.29 K	can asphyxiate if it excludes oxygen from the lungs	none				39.948 in units of 12C = 12.000	lquid air	-35 kJ mol-1 from Ar to Ar-	7440-37-1 for Chemical Abstracts System database	1.784 kg m-3 for gas at 273 K	174 pm	18	extracted from the atmosphere by liquefaction	-6.16 × 10-9 kg-1 m3 for gas		London and Bristol, England	15	non-toxic	9300 p.p.m. in atmopshere			965.7786 nm for Ar I	nothing				Ar	inert atmosphere in lamps and high temperature metallurgy	f.c.c	700000 tonnes per year	[Ne]3s23p6 in ground state	18		13.5 cm2 g-1 for MoKα X-ray diffraction	trace amounts in blood		150.87 K	18
gallium						atom						ocean								10000 years												III		unclassified oceanic element																																														13
gold						atom						in planet metallic core and associated with iron								unknown				exploding core of a supernova								I		supernova produced element																																														a column number in the table of the elements
hafnium						atom						ocean								unknown												IV		unclassified oceanic element																																														a column number in the table of the elements
helium	heel-iuhm	Im3m for γ-He at 1.73 K, 2.94 MPa	helium 3, helium 4	0.007 barns		noble gas	3 to 8 except 7	0.082 kJ mol-1	Norman Lockyer and Edward Frankland	0.152 W m-1 K-1 at 300 K	1868	atmosphere of a planet or asteroid	helios = sun from Greek		0.021 kJ mol-1	small pressurized canisters. Safe.	229 kPa	very low	non-toxic	unknown	present in some minerals	0.95 K under pressure	0.326 × 10-12 cm				1S0 in ground state	a = 411 pm for γ-He at 1.73 K, 2.94 MPa		very small for a 70 kg average person	3.7 × 109 tonnes in Earth's atmosphere	0		unclassified oceanic element	20.786 J K-1 mol-1 for gas at constant pressure 0.1 MPa at 298.15 K	gas at standard temperature and pressure		120 pm		32.07 cm3 at 4 K		4.216 K	harmless but could asphyxiate if it excludes oxygen from the lungs	none				4.005602 in units of 12C = 12.000	natural gas which may contain up to 7% helium	0.0 kJ mol-1 from to -	7440-59-7 for Chemical Abstracts System database	0.1785 kg m-3 for gas at 273 K	128 pm	2		-5.9 × 10-9 kg-1 m3 for gas		England	5 including nuclear isomers	non-toxic	4 × 10-6 p.p.m. in seawater			2058.130 nm for He I	nothing		helium 4		He	deep-sea diving, weather baloons, low temperature research	b.c.c. for γ-He at 1.73 K, 2.94 MPa	4500 tonnes year-1	1s2 = [He] in ground state	2		0.207 cm2 g-1 for MoKα X-ray diffraction	traces		5.25 K	18
hydrogen	hy-dro-jen		hydrogen 1, deuterium	0.3326 barns		atom	1 to 3	0.46 kJ mol-1	H. Cavendish	0.1815 W m-1 K-1 at 300 K for gas	1766	atmosphere of a planet or asteroid	hydro genes = water forming from Greek		0.12 kJ mol-1	small pressurized canisters. Warning !	1297 kPa	mainly as water	non-toxic	unknown	water	14.01 K	-0.37390 × 10-12 cm			30 pm	2S1/2 in ground state			7 kg for a 70 kg average person	almost limitless	I		unclassified oceanic element	20.784 J K-1 mol-1 for atomic gas at constant pressure 0.1 MPa at 298.15 K	gas at standard temperature and pressure		120 pm	hidrogeno	13.26 cm3		20.28 K	flammable and explosive when mixed with air; can asphyxiate if it excludes oxygen from lungs	constituent element of DNA. Component of water, essential to life.	154 pm for H-		hydrogene	1.00794 in units of 12C = 12.000	natural methane gas	72.8 kJ mol-1 from H to H-	1333-74-0 for Chemical Abstracts System database	0.08988 for gas at 273 K	78 pm	1	steam flowing over red hot coke produces H2 and CO (minor production mechanism)	-2.50 × 10-8 kg-1 m3 for gas		London, England	3	non-toxic	main constituent of water; some dissolved H2 in seawater	idrogeno		1875.10 nm for H I	air explosively	13.96 K at 7.2 kPa	hydrogen 1		H	making ammonia, cyclohexane, methanol, etc.		350 × 109 m3 year-1 as H2 gas	1s1 in ground state	1	Wasserstoff	0.380 cm2 g-1 for MoKα X-ray diffraction	93000 p.p.m. in muscle	2.20 Pauling	33.35 K
indium						atom						ocean								unknown												III		unclassified oceanic element																																														13
krypton						noble gas						atmosphere of a planet or asteroid								unknown												0		unclassified oceanic element		gas at standard temperature and pressure																																												18
neon	nee-on	Fm3m		0.040 barns		noble gas	17 to 25	1.736 kJ mol-1	Sir William Ramsay and M.W. Travers	0.0493 W m-1 K-1 for gas at 300 K	1898	atmosphere of a planet or asteroid	neon = new from Greek		0.324 kJ mol-1	small pressurized canisters. Safe.	2721 kPa	low		unknown	none	24.48 K	× 10-12 cm				1S0 in ground state	a = 445.462 pm		tiny for a 70 kg average person	6.5 × 1010 tonnes in atmosphere	0		unclassified oceanic element	20.786 J K-1 mol-1 for gas at constant pressure 0.1 MPa at 298.15 K	gas at standard temperature and pressure		160 pm		13.97 cm3	colourless, odourless gas	27.10 K	harmless gas, although it could asphyxiate if it excluded oxygen from the lungs	none				20.1797 in units of 12C = 12.000	liquid air	-29 kJ mol-1 from Ne to Ne-	7440-01-9 for Chemical Abstracts System database	0.89994 kg m-3 for gas at 273 K		10	liquid air	-4.2 × 10-9 kg-1 m3 for solid		London, England	9 including nuclear isomers	non-toxic	2 × 10-4 p.p.m. in seawater			885.387 nm for Be I	nothing		neon 20		Ne	ornamental lighting, neon signs	f.c.c	1 ton year-1	[He]2s22p6 in ground state	10		cm2 g-1 for MoKα X-ray diffraction	nil in muscle		44.5 K	18
niobium						atom						ocean								unknown												V		unclassified oceanic element																																														a column number in the table of the elements
oxygen	oksi-jen			0.00019 barns		chalcogen	13 to 20	6.82 kJ mol-1	J. Priestley, C.W. Sheele	0.2674 W m-1 K-1 at 300 K	1774	atmosphere of a planet or asteroid	oxy genes = acid forming from Greek		0.444 kJ mol-1	small pressurized canisters. Safe, but be aware of possible dangers.	5043 kPa	mainly as water	4800 p.p.m. for 4 hours inhaled ozone (O3)	unknown	oxides, silicates, carbonates, phosphates, sulfates also occurs as gas in atmosphere and as water	54.8 K	0.5803 × 10-12 cm			66 pm for single bond	3P2 in ground state	a = pm		43 kg for a 70 kg average person, mainly as water	1.2 × 1015 tonnes in atmosphere			unclassified oceanic element	21.912 J K-1 mol-1 for atomic gas at constant pressure 0.1 MPa at 298.15 K	gas at standard temperature and pressure		140 pm		8.00 cm3 at 54 K	colourless, odourless gas (O2) which is very reactive	90.188 K	O2 within a few percent of its natural concentration in air is harmless, but too little and it cannot sustain life, too much and it can cause pulmonary changes and teratogenic effects and is a fire hazard.	constituent element of DNA and of most other biologically important compounds	132 pm for O2-			15.9994 in units of 12C = 12.000	liquid air	141 kJ mol-1 from O to O-	7782-44-7 for Chemical Abstracts System database	1.429 kg m-3 for gas at 273 K	pm	8		+1.355 × 10-6 kg-1 m3 for gas		Leeds, England and Uppsala, Sweeden	8 including nuclear isomers	non-toxic as O2, but toxic as ozone (O3)	constituent element of water		kJ mol-1	844.676 nm for O I	all other elements except He, Ne, Ar and Kr		oxygen 16		O	steel-making, metal-cutting, the chemical industry and in medical treatment		1 × 108	[He]2s22p4 in ground state	8		1.31 cm2 g-1 for MoKα X-ray diffraction	160000 p.p.m. in muscle	3.44 Pauling	154.58 K	16
platinum						atom						in planet metallic core and associated with iron								unknown				exploding core of a supernova								II		supernova produced element																																														a column number in the table of the elements
praseodymium						lanthanide						ocean								unknown												III		unclassified oceanic element																																		4f												a column number in the table of the elements
protactinium						atom						ocean								unknown												V		unclassified oceanic element																				89 to 103														5f												a column number in the table of the elements
radium						atom						ocean								unknown												II		unclassified oceanic element																							malleable, extrudable and machinable
radon						noble gas						atmosphere of a planet or asteroid								unknown												0		unclassified oceanic element		gas at standard temperature and pressure																																												18
rhenium						atom						ocean								unknown												III		unclassified oceanic element																																														a column number in the table of the elements
tantalum						atom						ocean								unknown												V		unclassified oceanic element																																														a column number in the table of the elements
titanium	tit-ayn-iuhm	P63/mmc for α-Ti		6.09 barns	45.6 GPa	atom	41 to 53	428.9 kJ mol-1	Rev. W. Gregor	21.9 W m-1 K-1 at 300 K	1791	ocean	Titans = the sons of the Earth goddess from Greek	8.35 × 10-6 K-1	20.9 kJ mol-1	crystals, foil, granules, powder, rod or wire. Safe.		0.8 mg	non-lethal	50	anatase, brookite, ilmenite, perovskite, rutile, titanite	1933 K	-0.3438 × 10-12 cm			132 pm	3F2 in ground state	a = 295.11, c = 468.43 pm for α-Ti	0.361 GPa	20 mg for a 70 kg average person	440 × 106 tonnes	IV	120.2 GPa	unclassified oceanic element	24.430 J K-1 mol-1 for gas at constant pressure 0.1 MPa at 298.15 K		108.4 GPa			10.55 cm3	hard, lustrous, silvery metal which resists corrosion due to an oxide layer on its surface	3560 K	some compounds are dangerous to handle, such as TiCl3, which is corrosive. Suspected carcinogen.	none	80 pm for Ti2+	42.0 × 10-8 Ω m at 293 K		47.867 in units of 12C = 12.000	ilmenite; sometimes anatase	7.6 kJ mol-1 from Ti to Ti-	7440-32-6 for Chemical Abstracts System database	4110 kg m-3 for liquid at 1933 K melting point	145 pm	22		+4.01 × 10-8 kg-1 m3 for solid		Creed, Cornwall, England	13 including nuclear isomers	low as metal, oxide (TiO2) and inorganic titanium (IV) salts	4.8 × 10-4 p.p.m. in seawater			399.864 nm for Ti I	air if powdered metal is ignited		titanium 48		Ti	chemical plants, lightweight alloys, hip replacement joints	h.c.p. for α-Ti	3 × 106 tonnes year-1 TiO2	[Ar]3d24s2 in ground state	22		24.2 cm2 g-1 for MoKalpha X-ray diffraction	0.9 - 2.2 p.p.m. in muscle	1.54 Pauling		a column number in the table of the elements
tungsten						atom						ocean								unknown												VI		unclassified oceanic element																																														a column number in the table of the elements
xenon						noble gas						atmosphere of a planet or asteroid								unknown												0		unclassified oceanic element		gas at standard temperature and pressure																																												18
yttrium						atom						ocean								unknown												III		unclassified oceanic element																																														a column number in the table of the elements
zirconium						atom						ocean								unknown												IV		unclassified oceanic element																																														a column number in the table of the elements

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